Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Carl G. Jockusch Jr., Richard Laver, J. Donald Monk, Jan Mycielski, Jon Pearce. Annual Meeting of the Association for Symbolic Logic: Denver, 1983. Journal of Symbolic Logic, 49(2):674-682, 1984.
Abstract is missing.